4NLD image
Deposition Date 2013-11-14
Release Date 2014-03-19
Last Version Date 2024-04-03
Entry Detail
PDB ID:
4NLD
Title:
Crystal structure of the hepatitis C virus NS5B RNA-dependent RNA polymerase complex with BMS-791325 also known as (1aR,12bS)-8-cyclohexyl-n-(dimethylsulfamoyl)-11-methoxy-1a-{[(1R,5S)-3-methyl-3,8-diazabicyclo[3.2.1]oct-8-yl]carbonyl}-1,1a,2,12b-tetrahydrocyclopropa[d]indolo[2,1-a][2]benzazepine-5-carboxamide and 2-(4-fluorophenyl)-n-methyl-6-[(methylsulfonyl)amino]-5-(propan-2-yloxy)-1-benzofuran-3-carboxamide
Biological Source:
Source Organism:
Host Organism:
Method Details:
Experimental Method:
Resolution:
2.75 Å
R-Value Free:
0.25
R-Value Work:
0.21
R-Value Observed:
0.21
Space Group:
I 2 2 2
Macromolecular Entities
Polymer Type:polypeptide(L)
Molecule:RNA-directed RNA polymerase
Chain IDs:A
Chain Length:574
Number of Molecules:1
Biological Source:Hepatitis C virus
Primary Citation
Discovery and Preclinical Characterization of the Cyclopropylindolobenzazepine BMS-791325, A Potent Allosteric Inhibitor of the Hepatitis C Virus NS5B Polymerase.
J.Med.Chem. 57 1855 1879 (2014)
PMID: 24397558 DOI: 10.1021/jm4016894

Abstact

Described herein are structure-activity relationship studies that resulted in the optimization of the activity of members of a class of cyclopropyl-fused indolobenzazepine HCV NS5B polymerase inhibitors. Subsequent iterations of analogue design and syntheses successfully addressed off-target activities, most notably human pregnane X receptor (hPXR) transactivation, and led to significant improvements in the physicochemical properties of lead compounds. Those analogues exhibiting improved solubility and membrane permeability were shown to have notably enhanced pharmacokinetic profiles. Additionally, a series of alkyl bridged piperazine carboxamides was identified as being of particular interest, and from which the compound BMS-791325 (2) was found to have distinguishing antiviral, safety, and pharmacokinetic properties that resulted in its selection for clinical evaluation.

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